煤仓清理及防堵技术研究与实施

Research and implementation of coal bunker cleaning and anti-plugging technology

地面煤仓堵塞严重,清理难度大,防堵效果差,煤仓无法使用影响生产,而煤炭在地面露天存放,与当前环保形势相悖,同时增加了洗煤成本。针对该问题,通过分析煤仓堵仓原因及主要形式,在借鉴传统的空气炮、振动给煤机、高压水射流疏通及机器人清仓技术的基础上,经多次论证及现场试验,提出了钻机配备高压水射流钻杆进行清堵的安全、高效、实用的清仓新技术。采取建设专用钻机系统、高压水射流系统、清仓机器人系统相结合的方式,建立了煤仓安全智能清仓防堵系统。高压水射流专用钻杆能够对检测到的堵仓位置进行精确检测,并根据检测结果开启高压水泵,对堵塞位置的四周进行高压水扫射,能够对煤仓的堵塞进行疏通,对于仓壁黏着的部分物料,通过自行设计的清仓机器人携带的高压水射流系统,能够对煤仓各部位进行彻底清理。同时该系统可以实现对煤仓堵仓情况进行监控监测,并对其采集的数据进行处理,控制高压水射流机进行相应处理,并利用各监测模块间的实时联动,实现自动报警与现场措施的智能联动,为煤仓的安全运行提供可靠保障。

The ground coal bunker of Wanxiang Mining was seriously blocked,and it was difficult to clean,and the anti-plugging effect was poor.The raw coal bunker can no longer be used normally.The coal storage on the ground was contrary to the current environmental protection situation and this increased the cost of coal washing.In response to this problem,by analyzing the reasons and main forms of coal bunker blockage,based on the traditional air cannon,vibrating coal feeder,high-pressure water jet dredging and robot clearing technology,it was the first time to propose through multiple demonstrations and field experiments.The drilling rig was equipped with a highpressure water jet drill pipe for safe,efficient and practical new clearing technology.A combination of a special drilling rig system,a high-pressure water jet system,and a clearing robot system was adopted to establish a safe and intelligent clearing and anti-blocking system for the coal bunker.The high-pressure water jet special drill pipe can accurately detect the position of the plug and turn on the high-pressure water pump according to the test results to perform high-pressure water sweeping around the blockage position,which can clear the blockage of the coal bunker and prevent the adhesion of the bunker wall.Part of the materials can be thoroughly cleaned of all parts of the coal bunker through the high-pressure water jet system carried by the self-designed clearance robot.At the same time,the system can monitor the situation of coal bunker plugging,process the collected data,and control the high pressure water jet machine for corresponding processing,and use the real-time linkage between the monitoring modules to achieve automatic alarms and on-site measures.It provides reliable guarantee for the safe operation of coal bunker.As for the cleaning effect of the ground coal bunker through this set of technology,its effect is good,the efficiency is high,and it can be applied to the cleaning and anti-blocking of different types of coal bunkers in different locations.